Beijing winkang science and technology ltd. Is registered on the 1st floor of the 7th floor of conding street, beijing economic technology development zone, beijing city, with the registration authority being the market supervision authority of the beijing economic technology development zone, with the legal personality representing chen honghui, and operating on a technical basis, including audio and video software development; the production of specialized video display and transmission systems; the sale of electronic products, electronic metaware, mechanical equipment (other than cars), communications equipment (other than radio launch equipment), computer software and hardware and auxiliary equipment, audio equipment, projecting equipment (other than those subject to specific approval); technology transfer, technical services, technical advice, technical training; computer system integration; equipment installation, rental of equipment (project not subject to administrative auth...